A very nice coin in a dark, even patina, with luster.
In 1624, Henning Guttman restores the thirds to their urban character. The keys (the city's coat of arms) return on this issue, and its urbanity is further emphasized by the reverse legend: TERNARIVS POSNANIENSIS (in abbreviated form).
Type with the monogram of the king on the obverse.
Variety with REG PO on the reverse.
Very nice for this issue.
Rare, especially in this condition.